Home / 67,345.20-101,027.52-20,601.72

Finding the Fourth Proportional to 67,345.20, 101,027.52 and 20,601.72

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Solution

The fourth proportional to 67,345.20, 101,027.52 and 20,601.72 is: 30,905.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,345.20 : 101,027.52 = 20,601.72 : x
  2. Step 2: Convert to fraction form
    67,345.20/101,027.52 = 20,601.72/x
  3. Step 3: Cross multiply
    67,345.20x = 101,027.52 × 20,601.72
  4. Step 4: Simplify right side
    67,345.20x = 2,081,340,679.33
  5. Step 5: Solve for x
    x = 2,081,340,679.33/67,345.20
  6. Step 6: Final answer
    x = 30,905.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.